Khat is an effective anorectic, causing loss of appetite.The stimulant effect of the plant was originally attributed to "katin", cathine, a phenethylamine-type substance isolated from the plant.Its fresh leaves and tops are chewed or, less frequently, dried and consumed as tea, to achieve a state of euphoria and stimulation; it also has anorectic (appetite-reducing) side effects.
It has evergreen leaves, which are 5–10 cm (2–4 in) long and 1–4 cm (0.39–1.6 in) broad.
The shrub's flowers are produced on short axillary cymes that are 4–8 cm (1.6–3.1 in) in length. The samara fruit is an oblong, three-valved capsule, which contains one to three seeds.
Khat was ranked 17th in dependence, 20th in physical harm, and 20th in social harm.
Individuals become very talkative under the influence of the plant.
) is a flowering plant native to the Horn of Africa and the Arabian Peninsula.
Khat contains the alkaloid cathinone, a stimulant, which is said to cause excitement, loss of appetite, and euphoria.
Ground water is often pumped from deep wells by diesel engines to irrigate the crops, or brought in by water trucks.
The plants are watered heavily starting around a month before they are harvested to make the leaves and stems soft and moist.
Some studies done in 2001 estimated that the income from cultivating khat was about 2.5 million Yemeni rials per hectare, while fruits brought only 0.57 million rials per hectare.
Between 19, the area on which khat was cultivated was estimated to have grown from 8,000 to 103,000 hectares.
There, chewing khat predates the use of coffee and is used in a similar social context.